Holtgreven Ohaus Defender Series Bench Scales - Manual (Page 55)

EN-53 5000 Series Indicators
7. MAINTENANCE
CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE CLEANING.
7.1 Model T51P Cleaning
• The housing may be cleaned with a cloth dampened with a mild detergent if necessary.
• Do not use solvents, chemicals, alcohol, ammonia or abrasives to clean the housing or control panel.
7.2 Model T51XW Cleaning
• Use approved cleaning solutions for the stainless-steel Indicator housing and rinse with water. Dry thoroughly.
• Do not use solvents, chemicals, alcohol, ammonia or abrasives to clean the control panel.
7.3 Troubleshooting
TABLE 7-1. TROUBLESHOOTING.
SYMPTOM PROBABLE CAUSE(s) REMEDY
Unit will not turn on. Power cord not plugged in or properly
connected.
Power outlet not supplying electricity.
Battery discharged (T51P).
Other failure.
Check power cord connections. Make sure
power cord is plugged in properly into the
power outlet.
Check power source.
Replace batteries (T51P).
Service required.
Cannot zero the Scale, or will not zero when
turned on. Load on Scale exceeds allowable limits.
Load on Scale is not stable.
Load Cell damage.
Remove load on Scale.
Wait for load to become stable.
Service required.
Unable to calibrate. Lock Calibration Menu set to On.
LFT menu set to On.
Incorrect value for calibration mass.
Set Lock Calibration Menu to Off.
Refer to Section 3.12 Menu Lock.
Set LFT menu to Off.
Use correct calibration mass.
Cannot display weight in desired weighing
unit. Unit not set to On. Enable unit in the Units Menu.
Refer to Section 3.7 in the Unit Menu.
Cannot change menu settings. Menu has been locked. Set selected menu to Off in the Lock Menu.
Lockout Switch on the circuit board may
need to be set to the Off position.
Error 8.1 Weight reading exceeds Power On Zero limit. Remove load from scale. Recalibrate scale.
Error 8.2 Weight reading below Power On Zero limit. Add load to scale. Recalibrate scale.
Error 8.3 Weight reading exceeds Overload limit. Reduce load on scale.
Error 8.4 Weight reading below Underload limit. Add load to scale. Recalibrate scale.
Error 8.6 Weight exceeds six digits. Display overflow. Reduce load on scale.